I think that all of reality is open to discussion when talking with anyone, whether Christian or non-Christian.
I don't have time to talk about every aspect of reality every time I talk to someone. Some things will come up and some won't. However, the Apostle Paul says that some are "saved though as by fire."
If a situation requires a mention of hell, then we should have no more reluctance to talk about that reality than if we are talking about prayer.
i asked my mom and she told me i have paid more than most
and that just makes me double down and try harder